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WorksheetsChapter 11 Science light unit (9th grade)
Total questions: 20
Worksheet time: 10mins
An incandescent light bulb produces light when electrong flow through the...
air
glass
failament
vacuum
Which of the following is NOT true regarding neon lights?
Light is emitted as electrons move through a gas in a tube
All neon lights are colored by the color of tubing
Neon lights may contain other gases, such as helium or krypton
Each kind of gas produces its own distinctive color
Many streets and parking lots are illuminated with...
laser lights
tungsten-halogen lights
sodium-vapor lights
flurorescent lights
light whose waves all the same wavelength, direction, and coincident peaks is called...
coherent light
incandescent light
fluorescent light
neon light
what an object is made of and the color of light that strikes it determine the..
apparent color of the object
opacity of the object
transparency of the object
translucence of the object
Polarized sunglasses work by...
allowing only the waves vibrating in one direction can pass through
gradually refracting light as it passes through the lense
bending light as it passes from air into the lenses
reflecting most of the light that strikes the sunglasses
Which kind of light is used to carry information through optical fibers?
incandescent
fluorescent
sodium-vapor light
laser
When the scanner reads a barcode it...
filters the reflected light
combines to make an interference pattern
must be at the critical angle
measures the intensity of the reflected light
A hologram is produced by...
combining thousands of mirrors
projecting an image onto a screen
using a laser beam split into 2 parts
sending lasers through water
Choose a Vocabulary word for this sentence: A material that transmits light without scattering. Objects clearly visible through it...
transparent
translucent
pigment
filter
Choose a Vocabulary word for this sentence: Image of a distant produced by the refraction of light through air layers...
mirage
pigment
index of refraction
oqaque
Choose a Vocabulary word for this sentence: property of material indicating how much the speed of light is reduced
coherent light
pigment
index of refraction
fluorescent light
Choose a Vocabulary word for this sentence: Light produced by heating a piece of metal...
translucent
incandescent light
fluorescent light
coherent light
Translucent material:
scatters some light
transmits all light
absorbs all light
reflects all light
In order of increasing (lowest to highest) light-transmitting capabilities of materials, which is the correct sequence?
Transparent > opaque > translucent
opaque > transparent > translucent
opaque > translucent > transparent
Translucent > transparent > opaque
Which of the following occurs as light wave bends when it passes from one medium into another?
constrictive interference
refraction
destructive interference
reflection
A prism shows that white sunlight is made up of...
the full electromagnetic spectrum
only blue light
all the colors of the visible light spectrum
only the longest wavelengths
The primary colors of light are:
green, blue and black
cyan, magenta and yellow
red, yellow and blue
blue, green and red
The primary colors of pigments:
are cyan, yellow, and magenta
are the same as the secondary colors of light
combine in equal amounts to produce black
all of the above
combining equal amounts of the three primary pigments produces the color:
(a)
